Car-heater.



W. S. MENDEN. I

CAR HEATER.

APPLIGATION FILED MAR. 24,1914.

3 SHEETS-SHEET 1.

Zara. WM Maw/WW I $4 45 attozuuf W. S. MENDEN.

GAR HEATER.

urmornou FILED MAR. 24, 1914.

Patented Aug. 4, 19m

3 SHEETS-SHEET 2.

W. S. MENDEN.

I CAR HEATER. Lrrmuurmx rum) M12519.

Patented Aug. 4, 191i 3 BHEBT8BHEET 3.

wwwwoeo 'heat produced by the UNITED STATES BATENT OFFICE.

WILLIAM s. MENDEN, or BROOKLYN, NEW YORK, ASSIGNOR 'ro mneosm COMPANY,

' me, A CORPORATION or NEW YORK.

CAR-HEATER.

Specification of Letters Patent.

Patented Aug. 4, 1914.

Application filed-March 24, 1914. Serial No. 826,900.

To allwhom it may concern:

Be it known that I, WILLIAM S. MENDEN, a citizen of the United States, residing in the borough of Brookl n, county of Kings, and State of New Yor have invented certain new and useful Improvements in Car- Heaters, of which the following is a full and clear specification.

This invention relates to heating systems for vehicles and has for its primary object to provide improved means for utilizing the motor'of said vehicle and for operating said heat-utilizing means cooperatively with a heating device which 65 yided with registers is specifically and solely intended for vehicle-heating purposes;

Collateral and incidental purposes will appear in the specification and be pointed out in the appended claims, reference being had to the accompanying drawings, in which my invention is illustrated in several embod ments in its ada tabilit to a rapld transit assenger car, it ein o vious from the folowing description t at the same could be embodied in a motor-propelled vehicle of almost any type.-

In the drawings, Figure 1 is a diagrammatic inside elevation of a passenger car rovided with a heating system constructed in accordance with the principles of the present invention, parts being broken away and parts shown in section; Fig. 2 is a similar diagrammatic view illustrating one embodiment of the controlling circuits; and FM. 3 is a similar diagrammatic view showin; another embodiment of the controlling circuits. a Referring more particularly to the drawings, the truck wheels 1 (shown diagram- 'matically) are carried by axles 2 journaled be had while the car is being heated, as will appear hereinafter. At regular intervals th ou hout its .length the pipe 5 is pro- 1 g "3 through which the heated air is discharged. Within the duct 5 and preferably within the depressed portion 6 thereof, is'disposed a heating device preferably in the form of a heating coil 8, preferably disposed across the discharge outlet of a branch or elbow 9 which constitutes a connection leading from an air chamber 10 within which is mounted a pump, preferably in the form of a rotar fan or blower 11 to the duct 5. Said an 11 is suitably disposed to discharge into said branch or elbow 9 and is provided with a suction pipe 12, leading from a housing -13 which incases the motor (not shown), which drives one of the axles 2. In order to permit the truck to swing during the turning movements of the car, the pipe 12 is provided with a flexible portion 14'. \Vithin suction pipe 12, a strainer 15 is installed to prevent the inrush of dirt from the outside air. Projecting horizontally from the 'branch or elbow 9, is an inlet portion or branch 16 which is normally closed in cold weather by a gate or valve which is preferably in the form of a plate 17 pivoted to swing about a pin 18. With the arrangement of parts shown in Fig. 1, the air is drawn into the car by way of the housing '13, which is provided with suflicient crevices here and there (not shown) to supply the required amount of air.

Referring now to Fig. 2 in which one embodiment of the operating circuits is shown, the trolley line 19 is connected by a line 20. (including the trolley pole) which branches to the contacts 21 -and'22.- A switch 23 is adapted to close-a circuit for energizing the heating coil 8. Said circuit includes a fuse 24, a thermostat 25, a wire 26 which is connected to the coil 8,- a'nd a. grounded line 27. Another branch circuit for controlling the operation of pump 11, includes a switch 28, fuse 29, thermostat 30, and lead wire 31 which is connected toone terminal of a motor 32 which drives the fan 11, the other terminal of said motor being con nected to the ground line 27.

In the modification shown in Fig. 3. the circuit for energizing the heating coil 8', includes trolley wire 19', and line 20', contact 21, switch 23', fuse 24, thermostat 23'.

wire 26' and ground wire 27. For controlcontact 22, switch 28', fuse 29, line 0 become operative under difl'e-rent started, the switch which is connected to one terminal of motor 82', and ground -wire 2T. r Y From the foregoing description, the method of Operation and 'the advantages to be derived therefrom will be readily under- In moderately cold weather ,when it IS desired merely to take the chill out of the air in the car, suflicientheat may be obtained from the motor housing alone, Without at the same time causing the temperature of'the armature to rise to an undesirable degree. For this purpose, the switch 28 (see Fig. 2,) is closed and the motor 32 28 being allowed to remain open and thecoil 8 remaining unenerglzed, Thus as the car goes into service, air is piilled through the :motorhousing l3 andwarmed by the-armaturetherein, the valve or gate 17 (see Fig. 1)- being closed to direct. the heated air column upwardly through'the branch "9 into the duct 6 whichv discharges into thecar through theregisters I If. perchance the. temperature of the air in the car or vehicle, rises above a predetermined maximum, the thermostat operates to break the fan motor circuitand the injectio'nof heated air ceases, If on the other hand, extremely cold weather is experienced, both of thesivitches 23 and 28 may be closed and the car-ventilating air be heated by the energized coil 8 as well as by the main cardriving armature. By this combination of devices, it becomes possible to' thoroughly heat a car much more rapidly than can be done bythe coil 8 alone, or if arnumber of such heating coils are required,such number can be-iessened with a consequent reduction in the consumption of power withoutany reduction of the'heating effects. If desired the thermostats 25 andv30 canvbeadjusted to degrees of temperature, thus providing a better graded and more accurate control of temperature inthecar.

According to the modification shown in .'Fig. 3, the, thermostatic controlof the fan motor circuit is notin use, said circuit being opened and closed as occasion demands, by means of the switch 28'. An ar rangement like this is serviceable in places where a moderate supply of heat may be desirable atall times, the heating coil 8 being adapted to form a reserve source-of heat which canbe made operative when necessary. In this instance, it'is sufficient to provide an" automatic control of the reserve heat supply. Referringagain to Fig. 1, n summer or at other times when the Weather is warm or under any other conditions which makes itundesirable to supply heat to the car or vehicle, t-he'fan or pump 11 can be operated alone for. keeping down the temperature of the car-driving motor. For thlS' purpose, switch 23 remains open whilst switch 28 remains closed, the, air

hicle, a housing for said said heating device or said heat the air through the housing of the car-pro 1 motor, being expelledfby way ofthe outlet opening in the horizontal'branch -from'the elbow 9. Invthis case, the valve or ate. 17 is raised into positionto close the e how ,9 and open-the said outlet. I claim: I v a l. The combination with a vehicle o'f a. motor therefor, a' housing'for said. motor, a heating device other than said motor, and common means forjconveying heated fluidfromsaid heating deviceand motor housing, said conveying means being adapted to conmy beats vice or motor housing-separately.

2. The combination with a vehicle, of a heating device therefor, a'motor for said vemotor, and means for supplying heated air to said housing and heating device cooperasaid vehicle from tively, said means being adapted to deliver heated air from'either said heating device alone'or from said motor housing alone.

3. The combination with a vehicle, of amotor therefor, a housing'for said motor, a heating device other than meansfor conveying heated air from either motor housing.

4. Thecombination with avehicle, of an air duct discharging into the body of 'said vehiCle heating means suitabl disposed to heat'the air vpassing through'said duct a thermostat for controlling the operation of said heating means, a motor for the vehicle and a housing for said motor, said housing being connected. up to said duct to discharge air heated by the'motor into said duct. 5. The combination with a vehicle, of an air duct discharging into the bodyJof said vehicle, heating means su-itabiy disposed to heat the air passing through said duct, a thermostat for controlling the operation of said heatin means, a motor for the vehicle, a housing $0 to discharge air heated by the motor there i in r said motor, a connection cx tending between said housing and said duct into, and means for opening and closing the connection between said housing and duct.

6. The combination with a vehicle, of an air duct discharging into the-body of said vehicle, heating means suitably disposed to passing throughsaid duct, a thermostat for controlling the operation of said heating means, a motor for the vehicle, a housing for said motor, a connection (BX-- tending-betweensaid h'ou iug andsaid duct to discharge air heated b the motor thereinto, and means for opening and closing the said opening and closing means being thermostatically controlled.

7. In a heating system for vehicles, the combination. with aduct' for the heating medium a heating device operatably' re- Iat'ed tosaid duct, :1, motor for said vehicle,

'connection'betwecn said housing and duct,

' lated to'saidduct, a motor for said vehicle,

a'housing for said motor, means for forcing l1eatreceiving medium through said housing and into said duct, and means vfor alternately .rendering said heating device and forcing means active, said heating device and :forcingmeans being further adapted to he made operative,simultaneously:

9. In a heating system for vehicles, a heating coil, a motor for said vehicle, means for utilizing theheat from said motor to heat the vehicle, and a thermostat for controllingthe energization of said coil.

10. In a heat-mgsystem 'for vehicles, a heating coil, a motor for said vehicle, means for utilizing the heat from the motor to heat the vehicle, a thermostat for controlling the energizatio'n ofsaid coil, and a thermostat for controlling said heat-utilizing means.

II. In a heating s'ystem for vehicles, a

heating coil, a motor for said vehicle, means for utilizing the heat from said motor to heat the vehicle, said means including. a pump for displacing the .l'ieat conveying for vehicles, the.

and a thermostat for controlling lp.

' a heating system for vehicl for conveying air into s id a heating coil arranged in said d. electric circuit for said heating coil in ing a thermostat, amotor for said we a housing therefor adapted to receive and contain air in suitablerelation to saidmotor to be heated thereby, said air duct being pro-- videdwith a. branch connected to said housing, an air deflect the a'ir'from/said housing into the outer air or into that portion of the air duct urnp, and means adapted to discharging into said vehicle.

13. In a heating system for vehicles, a

'motor for said vehicle, means for convey ing'the heat fromsaid motor-to heat the vehicle. and thermostatic means for control ling said'heat conveying means. a

14. In a heating system, for vehicles, a motor for said vehicle, means for conveying heated finid from said motor to the-interior of said vehicle, said meansfincluding'a fluid: displacing pump, and a thermostat for controlling the operation of said fluid conveying means. v I y LLIAM S. MENDEN.

W'itnc'sses: I I

- in A. Coon'rnann,

' A. O. KNIGHT. 

